Rod motifs in neutron scattering in spin ice
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Castelnovo, Claudio https://orcid.org/0000-0003-1752-6343
Moessner, Roderich
Abstract
In classical and quantum spin ice, rodlike features appear in the neutron-scattering structure factor when the pinch points characteristic of classical spin ice get washed out. We show that these features do not indicate the absence of spin correlations between planes perpendicular to the rods. Rather, they arise because neutron scattering is largely insensitive to the three-dimensional correlations which are present throughout. We present two very simple models which exhibit a pristine incarnation of such scattering rods. This provides a physical picture for their appearance, elucidates the role played by monopole excitations, and identifies conditions conducive to their observation.
Description
Keywords
cond-mat.str-el, cond-mat.str-el
Journal Title
Physical Review B - Condensed Matter and Materials Physics
Conference Name
Journal ISSN
1098-0121
2469-9969
2469-9969
Volume Title
99
Publisher
American Physical Society
Publisher DOI
Sponsorship
Engineering and Physical Sciences Research Council (EP/K028960/1)
Engineering and Physical Sciences Research Council (EP/M007065/1)
Engineering and Physical Sciences Research Council (EP/M007065/1)
This work was supported in part by EPSRC Grant No. EP/K028960/1 and EPSRC Grant No. EP/M007065/1 (CC) and by the Deutsche Forschungsgemeinschaft under grants SFB 1143 and EXC 2147 ct.qmat (RM).